PHP - DOMXpath does not return any nodes when it should

Question

I am pulling HTML from Selenium, and then extracting data from the HTML using Xpaths.

This is the Xpath:

/html/body/div[2]/div[1]/div/div/div/div/ul/li/div[1]/h3/a

This is my code:

$data = $webdriver->getPageSource();
d($data, $urltemplate);
$doc = new DOMDocument();
                    $doc->loadHTML($data);
$xp = "/html/body/div[2]/div[1]/div/div/div/div/ul/li/div[1]/h3/a";
            $xpatho = new DOMXpath($doc);
 $elementsn =  $xpatho->query($xp);
d(get_class($elementsn),$elementsn->count(),$xp,$name);
// d() is a custom function like var_dump().

I always get $elementsn->count() = 0.

This is $data:

https://pastebin.com/ahuvkJfN

I am trying to extract those strings like "NAD M10 BLUOS...", "NAD M12 DIRECT DIGITAL..." and so on...

I saved the HTML into a file, and opened it in my browser. I am attaching screenshot of what data I was looking to retrieve (highlighted in blue):

Basically, the HTML page is a product listing, and I am looking to extract all the product names. To confirm, I used Chrome Developer tools, and used the copy full Xpath function. I have the following Xpaths for some of the product names:

/html/body/div[2]/div[1]/div/div/div/div/ul/li[1]/div[1]/h3/a
/html/body/div[2]/div[1]/div/div/div/div/ul/li[3]/div[1]/h3/a

I would guess that this would generalise to:

/html/body/div[2]/div[1]/div/div/div/div/ul/li/div[1]/h3/a

However, I keep on getting a DOMNodeList with count = 0. Why is this so, and how can I check what the error is, if any?

PS: This is the original webpage: http://lenbrook.com.sg/3-shop-by-brand#/page-4/price-49-8667

Answer 1

Try changing your $xp

$xp = '//a[@class="product_link"]/text()'